Respiratory System (2)

2. the location of the respiratory centres
3. a common condition in brachycephalic animals
4. receptors in the walls of bronchi/bronchioles, that detect prevent over-inflation of the lungs
7. the total volume of air in the lungs
8. high blood CO2 concentration
10. the maximum volume of air that can be forced out of the lungs
13. receptors that detect the levels of CO2 & O2 in the blood
17. the volume of air left in the lungs after forced expiration
20. inflammation of the nasal cavity
21. the process when the internal intercostal muscles contract
22. abnormal accumulation of fluid in the lungs
23. the failure to respond to a change in blood pH
24. the process when the external intercostal muscles contracts
25. the nerve which impulse travel along from the respiratory centres to the intercostal muscles

1. the volume of air left in the lungs after a expiration
5. low blood O2 concentration
6. the term for blood containing CO2
9. the nerve which impulses travel along from the stretch receptors to the medulla
11. the nerve which impulses travel along from the inspiratory centre to the diaphragm
12. the reflex that prevents over-inflation of the lungs
14. the volume of air breathed in/out in a normal breath
15. how many alveoli are in each lung
16. the units used to measure respiratory rate
18. a haemorrhage of the nasal cavity
19. dead space the volume of air that doesn't reach the alveoli